Abstract
Visible light communication (VLC) systems which employ visible light for communication is one of a promising technology for 5G due to its high bandwidth, efficient power consumption and higher security. In VLC, typically LEDs are used as a light source for transmitting information and providing illumination simultaneously. The intensity of the light is modulated at a very fast speed which is undetectable by human eyes. This paper explores the performance of two types of single-carrier modulation schemes suitable for VLC, namely OOK and PPM based on power, path-loss and data rates. The performance of unmodulated signal is also included for comparison purposes. The maximum distance achievable for each modulation schemes are recorded. It is shown that PPM has a superior performance compared to OOK in terms of the transmission distance and path loss, while OOK was excellent choice for highest data rates.
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